Ключевые слова: abdomen, active, activity, aerobic, athlete, athletic, balance, ball, blue, bosu, energetic, energy, equipment, exercise, fit, fitness, flexibility, foam, gym, health, healthy, leisure, lifestyle, loss, muscle, muscular, personal, physical, physical exercise, pilates, slim, slimming, sport, strength, stretching, studio, toning, train, training, waist, weight, workout, yoga,